in my experience, the main big preview always shows the last updated page in the session; so e.g. if I added something new to a game, but also made minor tweaks to index.html pages, I make sure to click save (on web) or upload (from CLI) for the game page last because that's the main page I want highlighted in the big preview :)
added a new tarot page (idk why it's not in the preview): https://lostletters.neocities.org/tarot/
I didn't touch these other pages, but I guess the preview is always a mystery when I'm using jekyll to build my site oh well
I only uncovered the mysterious ways of the preview like last month, and I'm not even using a SSG sob
in my experience, the main big preview always shows the last updated page in the session; so e.g. if I added something new to a game, but also made minor tweaks to index.html pages, I make sure to click save (on web) or upload (from CLI) for the game page last because that's the main page I want highlighted in the big preview :)